Control of MgO·Al2O3 Spinel Inclusions during Protective Gas Electroslag Remelting of Die Steel

2012 ◽  
Vol 44 (2) ◽  
pp. 378-389 ◽  
Author(s):  
Cheng-Bin Shi ◽  
Xi-Chun Chen ◽  
Han-Jie Guo ◽  
Zi-Jiang Zhu ◽  
Xiao-Lin Sun
Keyword(s):  
Electroslag Remelting ◽  
Die Steel ◽  
Protective Gas

Numerical Simulation of the Protective Gas Electroslag Remelting Process and Its Industrial Validation

2007 ◽  
Vol 152 (11) ◽  
pp. 345-349
Author(s):  
A. Mackenbrock ◽  
V. Maronnier ◽  
O. Köser ◽  
W. Schützenhöfer ◽  
G. Reiter ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Electroslag Remelting ◽  
Protective Gas

Assessment of Oxygen Control and Its Effect on Inclusion Characteristics during Electroslag Remelting of Die Steel

2012 ◽  
Vol 83 (5) ◽  
pp. 472-486 ◽  
Author(s):  
Cheng-Bin Shi ◽  
Xi-Chun Chen ◽  
Han-Jie Guo ◽  
Zi-Jiang Zhu ◽  
Hao Ren
Keyword(s):  
Electroslag Remelting ◽  
Oxygen Control ◽  
Die Steel

Investigation on Slag–Metal-Inclusion Multiphase Reactions During Electroslag Remelting of Die Steel

2021 ◽  
Author(s):  
Dong Hou ◽  
De-Yong Wang ◽  
Zhou-Hua Jiang ◽  
Tian-Peng Qu ◽  
Hui-Hua Wang ◽  
...  
Keyword(s):  
Electroslag Remelting ◽  
Die Steel ◽  
Metal Inclusion ◽  
Multiphase Reactions

Evolution of CaO–MgO–Al2O3–CaS–(SiO2) inclusions in H13 die steel during electroslag remelting process

2016 ◽  
Vol 45 (1) ◽  
pp. 6-16 ◽  
Author(s):  
H. Wang ◽  
C.-M. Shi ◽  
J. Li ◽  
C.-B. Shi ◽  
Y.-F. Qi
Keyword(s):  
Electroslag Remelting ◽  
Die Steel ◽  
H13 Die Steel

scholarly journals Effect of Directional Solidification in Electroslag Remelting on the Microstructure and Cleanliness of an Austenitic Hot-work Die Steel

2018 ◽  
Vol 58 (7) ◽  
pp. 1275-1284 ◽  
Author(s):  
Yongfeng Qi ◽  
Jing Li ◽  
Chengbin Shi ◽  
Ruming Geng ◽  
Jie Zhang
Keyword(s):  
Directional Solidification ◽  
Electroslag Remelting ◽  
Die Steel ◽  
Hot Work Die

Precipitation and growth of MnS inclusion in an austenitic hot-work die steel during ESR solidification process

2019 ◽  
Vol 116 (3) ◽  
pp. 322 ◽  
Author(s):  
Yongfeng Qi ◽  
Jing Li ◽  
Chengbin Shi ◽  
Hao Wang ◽  
Dingli Zheng
Keyword(s):  
Cooling Rate ◽  
Solidification Process ◽  
Unidirectional Solidification ◽  
Electroslag Remelting ◽  
Operating Parameters ◽  
Number Density ◽  
Die Steel ◽  
Solidification Model ◽  
Starting Time ◽  
Hot Work Die

This study follows a previous presentation of metallurgical results and operating parameters about the comparison between conventional ESR and continuous unidirectional solidification of electroslag remelting (ESR-CDS) and more precisely the effect of cooling rate on the precipitation and growth of inclusions in an austenitic hot-work die steel [Y.F. Qi, J. Li, C.B. Shi, R.M. Geng, J. Zhang, Effect of directional solidification in electroslag remelting on the microstructure and cleanliness of an austenitic hot-work die steel, ISIJ Int. 58, 1275–1284 (2018)]. A thermodynamic study, a classical solidification model and a growth model for MnS inclusions were used orderly to interpret the metallurgical results. Optical microscopy (OM) and scanning electron microscopy (SEM) were used to characterize microstructure and inclusions (i.e. number, size, morphology and distribution) in the as-cast ingots. The results showed that the as-cast microstructure was refined and the dendritic arm spacings were reduced through ESR-CDS process. The characteristics of inclusions showed that the number density and the size of inclusions in ingot were much more reduced through ESR-CDS process in comparison with ESR process. The starting time for the precipitation of MnS inclusion is retarded, which is due to the segregation of elements Mn and S lowered by higher cooling rate in ESR-CDS in comparison with that in ESR. The starting time for the precipitation of MnS inclusion in ESR was fs = 0.92, while that in ESR-CDS was fs = 0.95.

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